def get_vertexcover_scp(graph=None, k=3, min_nodes=20):
if graph == None:
graph = get_graph()
comus = scp.communities_scp(graph,k,min_nodes)
idset = set()
for ids in comus:
idset.update(ids)
sg = graph.subgraph(idset)
sg.vs['weight'] = sg.pagerank()
comu_names = scp.comuid2name(graph, comus)
comu_ids = scp.comuname2id(sg,comu_names)
cover = VertexCover(sg,comu_ids)
ccp = ClusterColoringPalette(len(cover))
#cls = ['black','gray','blue','green','white' ,'Maroon']
for i,cluster in enumerate(cover):
vlist = [v for v in sg.vs.select(cluster)]
vlist.sort(key=lambda v:v['weight'], reverse=True)
for v in vlist:
try:
v['color'] = ccp[i]
except:
v['color'] = ccp[i]
for v in vlist[0:4]:
v['label'] = v['name'].encode('utf8')
#v['lable_cex'] = 1.5
v['label_color'] = 'black'
return cover
def get_vertexcover_scp(graph=None, k=3, min_nodes=20):
if graph == None:
graph = get_graph()
comus = scp.communities_scp(graph, k, min_nodes)
idset = set()
for ids in comus:
idset.update(ids)
sg = graph.subgraph(idset)
sg.vs['weight'] = sg.pagerank()
comu_names = scp.comuid2name(graph, comus)
comu_ids = scp.comuname2id(sg, comu_names)
cover = VertexCover(sg, comu_ids)
ccp = ClusterColoringPalette(len(cover))
#cls = ['black','gray','blue','green','white' ,'Maroon']
for i, cluster in enumerate(cover):
vlist = [v for v in sg.vs.select(cluster)]
vlist.sort(key=lambda v: v['weight'], reverse=True)
for v in vlist:
try:
v['color'] = ccp[i]
except:
v['color'] = ccp[i]
for v in vlist[0:4]:
v['label'] = v['name'].encode('utf8')
#v['lable_cex'] = 1.5
v['label_color'] = 'black'
return cover
def draw_vertexcluster(graph=None):
import comdect, cairo
graph = get_graph()
lcd = comdect.LabelCommunityDetection(min_nodes=20)
coms = lcd.detect(graph)
idset = set()
for ids in coms:
idset.update(ids)
sg = graph.subgraph(iter(idset))
sg.vs['weight'] = sg.pagerank(directed=False, weights='weight')
comu_names = scp.comuid2name(graph, coms)
comu_ids = scp.comuname2id(sg, comu_names)
membership = [0 for i in range(0, sg.vcount())]
for idx, idset in enumerate(comu_ids):
for vid in idset:
membership[vid] = idx
cluster = VertexClustering(sg, membership)
ncluster = len(cluster)
ccp = ClusterColoringPalette(ncluster)
#cls = ['black','gray','blue','green','white' ,'Maroon']
for i, c in enumerate(comu_ids):
vlist = [v for v in sg.vs.select(c)]
for v in vlist:
try:
v['color'] = ccp[i]
except:
v['color'] = ccp[i]
topn = heapq.nlargest(5, vlist, key=lambda v: v['weight'])
for v in topn:
v['label'] = v['name'].encode('utf8')
v['label_size'] = 14
v['label_color'] = ccp[ncluster - i - 1]
fig = Plot(background='white')
#fig._ctx.set_font_face(face)
fig._ctx.select_font_face('WenQuanYi Zen Hei', cairo.FONT_SLANT_NORMAL,
cairo.FONT_WEIGHT_NORMAL)
fig.add(cluster,
bbox=(600, 600),
mark_groups=True,
vertex_size=5,
vertex_label_dist=2,
edge_width=0.3,
opacity=0.8)
#print "font family ",fig._ctx.get_font_face().get_family()
fig.show()
fig.save()
#print "font family ",fig._ctx.get_font_face().get_family()
return fig
def get_vertexcover_scp(graph):
comus = scp.communities_scp(graph, 3, 10)
comu_names = scp.comuid2name(graph, comus)
nameset = set()
for names in comu_names:
nameset.update(names)
sg = graph.subgraph(nameset)
comu_ids = scp.comuname2id(sg, comu_names)
cover = VertexCover(sg, comu_ids)
return cover
def get_vertexcover_scp(graph):
comus = scp.communities_scp(graph,3,10)
comu_names = scp.comuid2name(graph, comus)
nameset = set()
for names in comu_names:
nameset.update(names)
sg = graph.subgraph(nameset)
comu_ids = scp.comuname2id(sg,comu_names)
cover = VertexCover(sg,comu_ids)
return cover
def draw_vertexcluster(graph=None):
import comdect, cairo
graph = get_graph()
lcd = comdect.LabelCommunityDetection(min_nodes=20)
coms = lcd.detect(graph)
idset = set()
for ids in coms:
idset.update(ids)
sg = graph.subgraph(iter(idset))
sg.vs['weight'] = sg.pagerank(directed=False, weights='weight')
comu_names = scp.comuid2name(graph, coms)
comu_ids = scp.comuname2id(sg,comu_names)
membership = [0 for i in range(0,sg.vcount())]
for idx,idset in enumerate(comu_ids):
for vid in idset:
membership[vid] = idx
cluster = VertexClustering(sg, membership)
ncluster = len(cluster)
ccp = ClusterColoringPalette(ncluster)
#cls = ['black','gray','blue','green','white' ,'Maroon']
for i,c in enumerate(comu_ids):
vlist = [v for v in sg.vs.select(c)]
for v in vlist:
try:
v['color'] = ccp[i]
except:
v['color'] = ccp[i]
topn = heapq.nlargest(5, vlist, key=lambda v:v['weight'])
for v in topn:
v['label'] = v['name'].encode('utf8')
v['label_size'] = 14
v['label_color'] = ccp[ncluster-i-1]
fig = Plot(background='white')
#fig._ctx.set_font_face(face)
fig._ctx.select_font_face('WenQuanYi Zen Hei', cairo.FONT_SLANT_NORMAL,cairo.FONT_WEIGHT_NORMAL)
fig.add(cluster,bbox=(600,600), mark_groups=True,vertex_size=5, vertex_label_dist=2, edge_width=0.3, opacity=0.8)
#print "font family ",fig._ctx.get_font_face().get_family()
fig.show()
fig.save()
#print "font family ",fig._ctx.get_font_face().get_family()
return fig